UFC Perth flyweight bout under scrutiny after 'irregular' betting patterns trigger massive odds shift

Key facts

• Steve Erceg vs. Tim Elliott flyweight bout scheduled for May 2, 2026 at RAC Arena in Perth, Australia.
• Erceg opened as -285 favorite on April 22; odds swung to -600 before dropping to -175.
• Elliott moved from +245 underdog to +145, with 91% of sharp bets placed on him.
• BetOnline's sportsbook manager Adam Burns publicly called the line move 'fishy' on social media.
• UFC previously scrapped a fight between Alexander Hernandez and Michael Johnson in January due to irregular betting.
• Isaac Dulgarian's November 2025 loss to Yadier del Valle is under FBI investigation after suspicious betting patterns.
• Elliott, 39, has no UFC knockout wins; his last stoppage by TKO/KO was in December 2011 against Jens Pulver.
• Elliott changed his training camp to focus solely on sparring, eliminating strength and conditioning.

A drastic line move raises red flags

A flyweight bout on Saturday's UFC Perth card has triggered unusual betting activity, with sportsbook BetOnline reporting what it calls 'irregular action' on the Steve Erceg vs. Tim Elliott matchup. The liability for this single fight is three times that of any other bout on the card, according to the sportsbook. Odds opened on April 22 with Erceg as a -285 favorite and Elliott at +245. Within days, Erceg's line ballooned to -600 before a flood of money on Elliott drove it down to -175. Elliott now stands at +145, an extraordinary shift that BetOnline's sportsbook manager Adam Burns described as 'very weird' and 'fishy' in a post on X. More than 91% of sharp or professional wagers have been placed on Elliott, the underdog. The bout is still scheduled to proceed as planned, and the promotion has yet to comment.

Elliott's unconventional camp and quest for a knockout

Tim Elliott, 39, enters the fight with a 21-13-1 record, having won four of his last five bouts, including back-to-back submission victories over Ode Osbourne and Kai Asakura. He has never scored a TKO or knockout in his 21 UFC appearances; his last stoppage of that kind came in December 2011 against Jens Pulver at RFA 1. For this camp, Elliott abandoned traditional strength and conditioning entirely. 'I completely cut out strength and conditioning, running, lifting. I didn't do any of that. I sparred three or four times a week. I grappled live. I drilled hard,' he said at a pre-fight news conference. 'This is the first fight I've ever gone into where I'm not limping into the cage.' Elliott said he is targeting a knockout, a departure from his usual approach. 'I know everybody says that. I don't have a knockout yet in the UFC. But again, this camp was different. I wasn't taking guys down. I was beating guys' ass in the gym. So I'm going to try to do that.'

Erceg's recent struggles and the stakes

Steve Erceg, 13-4, is coming off a unanimous decision victory over Ode Osbourne last summer in Las Vegas, but had lost three straight fights before that. He is nine years younger than Elliott at 30, and hopes to halt Elliott's momentum. Elliott acknowledged Erceg's well-rounded skills but downplayed the threat. 'I watched him fight Brandon Moreno. He's tough. He's well-rounded. I think he's really, really solid everywhere. He doesn't have the danger factor of the last guy I fought,' Elliott said. 'It's a little bit of a weight off my shoulders, not having to worry about being head kicked or knocked out.' The bout is part of the main card at RAC Arena in Perth, Western Australia, with 13 fights scheduled for the event.

UFC's recent history with irregular betting

This is not the first time the UFC has faced scrutiny over betting patterns. In January, a lightweight bout between Alexander Hernandez and Michael Johnson was scrapped from UFC 324 due to irregular betting activity. The fight was never rebooked; both fighters lost their next matchups against different opponents. In November 2025, featherweight Isaac Dulgarian was a heavy favorite heading into his fight against Yadier del Valle, but odds dropped massively on fight day as money poured in on the underdog. Dulgarian lost by first-round submission, and UFC president Dana White later revealed that the FBI is investigating the bout. Dulgarian has since disappeared from social media, while del Valle lost his next fight easily to Jordan Leavitt, drawing further suspicion. The UFC has not commented on the Erceg-Elliott situation, and the fight remains on the card.

What the betting patterns suggest

The line movement in the Erceg-Elliott bout could be the result of head-fake betting, where bettors place wagers on the opposite side of their intended position to manipulate lines. Alternatively, it may signal inside information or other irregularities. BetOnline's public acknowledgment of the unusual activity adds pressure on the UFC to monitor the situation closely. With 91% of sharp money on Elliott, the betting market is heavily favoring the underdog, a rare occurrence for a fighter who opened as a significant underdog. The sportsbook's liability being three times that of any other fight indicates the scale of the wagers placed. No proof of wrongdoing has emerged, but the drastic odds shift and the UFC's recent history of fight cancellations due to betting irregularities have put the bout under a microscope.

The outlook for Saturday's fight

As of now, the Erceg-Elliott fight is scheduled to proceed as part of UFC Perth's 13-fight card. The promotion has not indicated any plans to cancel or postpone the bout. For Elliott, a win would be a significant upset and could propel him into title contention at flyweight. For Erceg, a loss would be a setback after his recent victory. The broader implications for the UFC are significant. With the FBI already investigating one bout and another fight scrapped due to betting patterns, the organization faces increasing scrutiny over its ability to ensure the integrity of its events. Saturday's fight will be watched closely by regulators, sportsbooks, and fans alike. Whether the betting activity proves to be a red herring or a sign of something more sinister, the Erceg-Elliott matchup has become the most talked-about fight on the card for reasons far beyond the athletes themselves.

The bottom line

• irregular betting on Erceg vs. Elliott, with liability three times higher than any other fight on the card.
• Erceg's odds swung from -600 to -175, while Elliott moved from +245 to +145, with 91% of sharp bets on Elliott.
• Elliott changed his training to focus solely on sparring, aiming for his first UFC knockout.
• The UFC has a recent history of fight cancellations and an FBI investigation related to suspicious betting patterns.
• No official comment from the UFC; the fight remains on schedule for May 2 in Perth.
• The outcome may affect the UFC's credibility and handling of betting integrity going forward.